SE-330-21-11

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Protection relays and systems provide an important function in safeguarding electrical systems and equipment from surge, overload, and faults. The SE-330-21-11 is a three-phase non-directional overcurrent and ground fault protection relay system designed to protect three-phase power distribution or process power systems from short circuits and other irregularities. It is an ideal solution for applications such as power distribution, power generation, and industrial plants.

The SE-330-21-11 features a rugged, waterproof design with a stainless steel housing and environmentally sealed contacts. The SE-330-21-11 is designed with a frequency range of 60Hz and is capable of detecting 6, 12, 15, and 20 amps of current. The SE-330-21-11 also offers a choice of ground fault protection, overcurrent protection, or both. When both are used, a ground fault detector is installed on each of the three phases. The SE-330-21-11 can be programmed to provide protection based on a pre-determined time delay. It also has adjustable current settings for overcurrent protection. The relay is also designed with anti-tamper logic, buzzer alarms, LED indicators for normal and alarm, and adjustable time delay.

The SE-330-21-11 works by detecting the presence of a short circuit or ground fault on the power system and then activating the relay. The relay then trips the breaker or disconnects the circuit to prevent any further damage. The SE-330-21-11 is designed to detect both instantaneous and time delay currents, so a wide variety of applications can be protected. The relay also offers adjustable current settings so it can be used in a variety of applications with varying current ratings.

The SE-330-21-11 provides reliable overcurrent and ground fault protection for a variety of applications. It provides a rugged design with a stainless steel housing and environmentally sealed contacts. It operates within a wide frequency range and is designed to detect both instantaneous and time delay currents. The relay also offers adjustable current settings and anti-tamper logic. The SE-330-21-11 is an ideal solution for applications such as power distribution, power generation, and industrial plants.

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